<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html lang="en">
<head>
<title>Source code</title>
<link rel="stylesheet" type="text/css" href="../../../../stylesheet.css" title="Style">
</head>
<body>
<div class="sourceContainer">
<pre><span class="sourceLineNo">001</span><a name="line.1"></a>
<span class="sourceLineNo">002</span>/*<a name="line.2"></a>
<span class="sourceLineNo">003</span> * Copyright (C) 2008 Archie L. Cobbs. All rights reserved.<a name="line.3"></a>
<span class="sourceLineNo">004</span> *<a name="line.4"></a>
<span class="sourceLineNo">005</span> * $Id: XMLConverter.html 25 2014-12-12 19:45:48Z archie.cobbs $<a name="line.5"></a>
<span class="sourceLineNo">006</span> */<a name="line.6"></a>
<span class="sourceLineNo">007</span><a name="line.7"></a>
<span class="sourceLineNo">008</span>package org.dellroad.hl7;<a name="line.8"></a>
<span class="sourceLineNo">009</span><a name="line.9"></a>
<span class="sourceLineNo">010</span>import java.io.EOFException;<a name="line.10"></a>
<span class="sourceLineNo">011</span>import java.io.FileInputStream;<a name="line.11"></a>
<span class="sourceLineNo">012</span>import java.io.IOException;<a name="line.12"></a>
<span class="sourceLineNo">013</span>import java.io.InputStream;<a name="line.13"></a>
<span class="sourceLineNo">014</span>import java.io.OutputStream;<a name="line.14"></a>
<span class="sourceLineNo">015</span>import java.io.OutputStreamWriter;<a name="line.15"></a>
<span class="sourceLineNo">016</span><a name="line.16"></a>
<span class="sourceLineNo">017</span>import javax.xml.parsers.DocumentBuilder;<a name="line.17"></a>
<span class="sourceLineNo">018</span>import javax.xml.parsers.DocumentBuilderFactory;<a name="line.18"></a>
<span class="sourceLineNo">019</span>import javax.xml.parsers.ParserConfigurationException;<a name="line.19"></a>
<span class="sourceLineNo">020</span>import javax.xml.stream.XMLStreamException;<a name="line.20"></a>
<span class="sourceLineNo">021</span>import javax.xml.stream.XMLStreamWriter;<a name="line.21"></a>
<span class="sourceLineNo">022</span>import javax.xml.transform.OutputKeys;<a name="line.22"></a>
<span class="sourceLineNo">023</span>import javax.xml.transform.Transformer;<a name="line.23"></a>
<span class="sourceLineNo">024</span>import javax.xml.transform.TransformerConfigurationException;<a name="line.24"></a>
<span class="sourceLineNo">025</span>import javax.xml.transform.TransformerException;<a name="line.25"></a>
<span class="sourceLineNo">026</span>import javax.xml.transform.TransformerFactory;<a name="line.26"></a>
<span class="sourceLineNo">027</span>import javax.xml.transform.dom.DOMSource;<a name="line.27"></a>
<span class="sourceLineNo">028</span>import javax.xml.transform.stream.StreamResult;<a name="line.28"></a>
<span class="sourceLineNo">029</span><a name="line.29"></a>
<span class="sourceLineNo">030</span>import org.dellroad.hl7.io.HL7FileReader;<a name="line.30"></a>
<span class="sourceLineNo">031</span>import org.w3c.dom.Document;<a name="line.31"></a>
<span class="sourceLineNo">032</span>import org.w3c.dom.Element;<a name="line.32"></a>
<span class="sourceLineNo">033</span>import org.w3c.dom.Node;<a name="line.33"></a>
<span class="sourceLineNo">034</span><a name="line.34"></a>
<span class="sourceLineNo">035</span>/**<a name="line.35"></a>
<span class="sourceLineNo">036</span> * Converts {@link HL7Message}s to and from XML.<a name="line.36"></a>
<span class="sourceLineNo">037</span> */<a name="line.37"></a>
<span class="sourceLineNo">038</span>public final class XMLConverter {<a name="line.38"></a>
<span class="sourceLineNo">039</span><a name="line.39"></a>
<span class="sourceLineNo">040</span>    /**<a name="line.40"></a>
<span class="sourceLineNo">041</span>     * HL7 message XML namespace.<a name="line.41"></a>
<span class="sourceLineNo">042</span>     */<a name="line.42"></a>
<span class="sourceLineNo">043</span>    public static final String HL7_NAMESPACE_URI = null;<a name="line.43"></a>
<span class="sourceLineNo">044</span><a name="line.44"></a>
<span class="sourceLineNo">045</span>    /**<a name="line.45"></a>
<span class="sourceLineNo">046</span>     * XML tag name used by {@link #toXML}.<a name="line.46"></a>
<span class="sourceLineNo">047</span>     */<a name="line.47"></a>
<span class="sourceLineNo">048</span>    public static final String HL7_TAG = "HL7";<a name="line.48"></a>
<span class="sourceLineNo">049</span><a name="line.49"></a>
<span class="sourceLineNo">050</span>    /**<a name="line.50"></a>
<span class="sourceLineNo">051</span>     * XML tag name used for one XML-encoded message.<a name="line.51"></a>
<span class="sourceLineNo">052</span>     */<a name="line.52"></a>
<span class="sourceLineNo">053</span>    public static final String MESSAGE_TAG = "MESSAGE";<a name="line.53"></a>
<span class="sourceLineNo">054</span><a name="line.54"></a>
<span class="sourceLineNo">055</span>    private XMLConverter() {<a name="line.55"></a>
<span class="sourceLineNo">056</span>    }<a name="line.56"></a>
<span class="sourceLineNo">057</span><a name="line.57"></a>
<span class="sourceLineNo">058</span>    /**<a name="line.58"></a>
<span class="sourceLineNo">059</span>     * Create an empty XML document for HL7 messages.<a name="line.59"></a>
<span class="sourceLineNo">060</span>     */<a name="line.60"></a>
<span class="sourceLineNo">061</span>    public static Document createDocument() {<a name="line.61"></a>
<span class="sourceLineNo">062</span>        DocumentBuilderFactory documentBuilderFactory = DocumentBuilderFactory.newInstance();<a name="line.62"></a>
<span class="sourceLineNo">063</span>        documentBuilderFactory.setNamespaceAware(true);<a name="line.63"></a>
<span class="sourceLineNo">064</span>        DocumentBuilder documentBuilder;<a name="line.64"></a>
<span class="sourceLineNo">065</span>        try {<a name="line.65"></a>
<span class="sourceLineNo">066</span>            documentBuilder = documentBuilderFactory.newDocumentBuilder();<a name="line.66"></a>
<span class="sourceLineNo">067</span>        } catch (ParserConfigurationException e) {<a name="line.67"></a>
<span class="sourceLineNo">068</span>            throw new RuntimeException(e);<a name="line.68"></a>
<span class="sourceLineNo">069</span>        }<a name="line.69"></a>
<span class="sourceLineNo">070</span>        Document document = documentBuilder.getDOMImplementation().createDocument(HL7_NAMESPACE_URI, HL7_TAG, null);<a name="line.70"></a>
<span class="sourceLineNo">071</span>        document.setXmlStandalone(true);<a name="line.71"></a>
<span class="sourceLineNo">072</span>        return document;<a name="line.72"></a>
<span class="sourceLineNo">073</span>    }<a name="line.73"></a>
<span class="sourceLineNo">074</span><a name="line.74"></a>
<span class="sourceLineNo">075</span>    /**<a name="line.75"></a>
<span class="sourceLineNo">076</span>     * Convert an HL7 message message to an XML document. The document<a name="line.76"></a>
<span class="sourceLineNo">077</span>     * element will be &amp;lt;HL7&amp;gt; and contain one child which is the<a name="line.77"></a>
<span class="sourceLineNo">078</span>     * XML encoding of the message.<a name="line.78"></a>
<span class="sourceLineNo">079</span>     *<a name="line.79"></a>
<span class="sourceLineNo">080</span>     * @param message HL7 message<a name="line.80"></a>
<span class="sourceLineNo">081</span>     * @param omitEmpty Omit empty tags (other than the last one)<a name="line.81"></a>
<span class="sourceLineNo">082</span>     * @return HL7 message encoded as an XML document<a name="line.82"></a>
<span class="sourceLineNo">083</span>     */<a name="line.83"></a>
<span class="sourceLineNo">084</span>    public static Document toXML(HL7Message message, boolean omitEmpty) {<a name="line.84"></a>
<span class="sourceLineNo">085</span>        Document doc = createDocument();<a name="line.85"></a>
<span class="sourceLineNo">086</span>        XMLConverter.appendMessage(doc.getDocumentElement(), message, omitEmpty);<a name="line.86"></a>
<span class="sourceLineNo">087</span>        return doc;<a name="line.87"></a>
<span class="sourceLineNo">088</span>    }<a name="line.88"></a>
<span class="sourceLineNo">089</span><a name="line.89"></a>
<span class="sourceLineNo">090</span>    /**<a name="line.90"></a>
<span class="sourceLineNo">091</span>     * Convert a message to XML and append it to the given element.<a name="line.91"></a>
<span class="sourceLineNo">092</span>     *<a name="line.92"></a>
<span class="sourceLineNo">093</span>     * @param parent an XML {@link Element} or {@link Document} node<a name="line.93"></a>
<span class="sourceLineNo">094</span>     * @param message HL7 message to append<a name="line.94"></a>
<span class="sourceLineNo">095</span>     * @param omitEmpty Omit empty tags (other than the last one)<a name="line.95"></a>
<span class="sourceLineNo">096</span>     */<a name="line.96"></a>
<span class="sourceLineNo">097</span>    public static void appendMessage(Node parent, HL7Message message, boolean omitEmpty) {<a name="line.97"></a>
<span class="sourceLineNo">098</span>        Element messageTag = parent.getOwnerDocument().createElementNS(HL7_NAMESPACE_URI, MESSAGE_TAG);<a name="line.98"></a>
<span class="sourceLineNo">099</span>        for (HL7Segment segment : message.getSegments())<a name="line.99"></a>
<span class="sourceLineNo">100</span>            XMLConverter.appendSegment(messageTag, segment, omitEmpty);<a name="line.100"></a>
<span class="sourceLineNo">101</span>        parent.appendChild(messageTag);<a name="line.101"></a>
<span class="sourceLineNo">102</span>    }<a name="line.102"></a>
<span class="sourceLineNo">103</span><a name="line.103"></a>
<span class="sourceLineNo">104</span>    /**<a name="line.104"></a>
<span class="sourceLineNo">105</span>     * Convert a message to XML and append it to the given {@link XMLStreamWriter}.<a name="line.105"></a>
<span class="sourceLineNo">106</span>     *<a name="line.106"></a>
<span class="sourceLineNo">107</span>     * @param writer XML output<a name="line.107"></a>
<span class="sourceLineNo">108</span>     * @param message HL7 message to append<a name="line.108"></a>
<span class="sourceLineNo">109</span>     * @param omitEmpty Omit empty tags (other than the last one)<a name="line.109"></a>
<span class="sourceLineNo">110</span>     */<a name="line.110"></a>
<span class="sourceLineNo">111</span>    public static void appendMessage(XMLStreamWriter writer, HL7Message message, boolean omitEmpty) throws XMLStreamException {<a name="line.111"></a>
<span class="sourceLineNo">112</span>        writer.writeStartElement(MESSAGE_TAG);<a name="line.112"></a>
<span class="sourceLineNo">113</span>        writer.setDefaultNamespace(HL7_NAMESPACE_URI);<a name="line.113"></a>
<span class="sourceLineNo">114</span>        for (HL7Segment segment : message.getSegments())<a name="line.114"></a>
<span class="sourceLineNo">115</span>            XMLConverter.appendSegment(writer, segment, omitEmpty);<a name="line.115"></a>
<span class="sourceLineNo">116</span>        writer.writeEndElement();<a name="line.116"></a>
<span class="sourceLineNo">117</span>    }<a name="line.117"></a>
<span class="sourceLineNo">118</span><a name="line.118"></a>
<span class="sourceLineNo">119</span>    /**<a name="line.119"></a>
<span class="sourceLineNo">120</span>     * Convert a segment to XML and append it to the given element.<a name="line.120"></a>
<span class="sourceLineNo">121</span>     *<a name="line.121"></a>
<span class="sourceLineNo">122</span>     * @param parent an XML {@link Element} or {@link Document} node<a name="line.122"></a>
<span class="sourceLineNo">123</span>     * @param segment HL7 segment to append<a name="line.123"></a>
<span class="sourceLineNo">124</span>     * @param omitEmpty Omit empty tags (other than the last one)<a name="line.124"></a>
<span class="sourceLineNo">125</span>     */<a name="line.125"></a>
<span class="sourceLineNo">126</span>    public static void appendSegment(Node parent, HL7Segment segment, boolean omitEmpty) {<a name="line.126"></a>
<span class="sourceLineNo">127</span>        String segName = segment.getName();<a name="line.127"></a>
<span class="sourceLineNo">128</span>        Document doc = parent.getOwnerDocument();<a name="line.128"></a>
<span class="sourceLineNo">129</span>        Element segXML = doc.createElementNS(HL7_NAMESPACE_URI, segName);<a name="line.129"></a>
<span class="sourceLineNo">130</span>        HL7Field[] fields = segment.getFields();<a name="line.130"></a>
<span class="sourceLineNo">131</span>        for (int i = 1; i &lt; fields.length; i++) {<a name="line.131"></a>
<span class="sourceLineNo">132</span>            HL7Field field = fields[i];<a name="line.132"></a>
<span class="sourceLineNo">133</span>            if (omitEmpty &amp;&amp; i &lt; fields.length - 1 &amp;&amp; field.isEmpty())<a name="line.133"></a>
<span class="sourceLineNo">134</span>                continue;<a name="line.134"></a>
<span class="sourceLineNo">135</span>            String fieldTag = segName + "." + i;<a name="line.135"></a>
<span class="sourceLineNo">136</span>            for (String[][] repeat : field.getValue()) {<a name="line.136"></a>
<span class="sourceLineNo">137</span>                Element repeatXML = doc.createElementNS(HL7_NAMESPACE_URI, fieldTag);<a name="line.137"></a>
<span class="sourceLineNo">138</span>                segXML.appendChild(repeatXML);<a name="line.138"></a>
<span class="sourceLineNo">139</span>                if (repeat.length == 1 &amp;&amp; repeat[0].length == 1) {<a name="line.139"></a>
<span class="sourceLineNo">140</span>                    if (repeat[0][0].length() &gt; 0)<a name="line.140"></a>
<span class="sourceLineNo">141</span>                        repeatXML.appendChild(doc.createTextNode(repeat[0][0]));<a name="line.141"></a>
<span class="sourceLineNo">142</span>                    continue;<a name="line.142"></a>
<span class="sourceLineNo">143</span>                }<a name="line.143"></a>
<span class="sourceLineNo">144</span>                for (int j = 0; j &lt; repeat.length; j++) {<a name="line.144"></a>
<span class="sourceLineNo">145</span>                    String[] comp = repeat[j];<a name="line.145"></a>
<span class="sourceLineNo">146</span>                    if (omitEmpty<a name="line.146"></a>
<span class="sourceLineNo">147</span>                      &amp;&amp; j &lt; repeat.length - 1<a name="line.147"></a>
<span class="sourceLineNo">148</span>                      &amp;&amp; comp.length == 1 &amp;&amp; comp[0].length() == 0)<a name="line.148"></a>
<span class="sourceLineNo">149</span>                        continue;<a name="line.149"></a>
<span class="sourceLineNo">150</span>                    String compTag = fieldTag + "." + (j + 1);<a name="line.150"></a>
<span class="sourceLineNo">151</span>                    Element compXML = doc.createElementNS(HL7_NAMESPACE_URI, compTag);<a name="line.151"></a>
<span class="sourceLineNo">152</span>                    repeatXML.appendChild(compXML);<a name="line.152"></a>
<span class="sourceLineNo">153</span>                    if (comp.length == 1) {<a name="line.153"></a>
<span class="sourceLineNo">154</span>                        if (comp[0].length() &gt; 0)<a name="line.154"></a>
<span class="sourceLineNo">155</span>                            compXML.appendChild(doc.createTextNode(comp[0]));<a name="line.155"></a>
<span class="sourceLineNo">156</span>                        continue;<a name="line.156"></a>
<span class="sourceLineNo">157</span>                    }<a name="line.157"></a>
<span class="sourceLineNo">158</span>                    for (int k = 0; k &lt; comp.length; k++) {<a name="line.158"></a>
<span class="sourceLineNo">159</span>                        String subcomp = comp[k];<a name="line.159"></a>
<span class="sourceLineNo">160</span>                        if (omitEmpty<a name="line.160"></a>
<span class="sourceLineNo">161</span>                          &amp;&amp; k &lt; comp.length - 1 &amp;&amp; subcomp.length() == 0)<a name="line.161"></a>
<span class="sourceLineNo">162</span>                            continue;<a name="line.162"></a>
<span class="sourceLineNo">163</span>                        String subcompTag = compTag + "." + (k + 1);<a name="line.163"></a>
<span class="sourceLineNo">164</span>                        Element subcompXML = doc.createElementNS(HL7_NAMESPACE_URI, subcompTag);<a name="line.164"></a>
<span class="sourceLineNo">165</span>                        if (subcomp.length() &gt; 0)<a name="line.165"></a>
<span class="sourceLineNo">166</span>                            subcompXML.appendChild(doc.createTextNode(subcomp));<a name="line.166"></a>
<span class="sourceLineNo">167</span>                        compXML.appendChild(subcompXML);<a name="line.167"></a>
<span class="sourceLineNo">168</span>                    }<a name="line.168"></a>
<span class="sourceLineNo">169</span>                }<a name="line.169"></a>
<span class="sourceLineNo">170</span>            }<a name="line.170"></a>
<span class="sourceLineNo">171</span>        }<a name="line.171"></a>
<span class="sourceLineNo">172</span>        parent.appendChild(segXML);<a name="line.172"></a>
<span class="sourceLineNo">173</span>    }<a name="line.173"></a>
<span class="sourceLineNo">174</span><a name="line.174"></a>
<span class="sourceLineNo">175</span>    /**<a name="line.175"></a>
<span class="sourceLineNo">176</span>     * Convert a segment to XML and write it to the given {@link XMLStreamWriter}.<a name="line.176"></a>
<span class="sourceLineNo">177</span>     *<a name="line.177"></a>
<span class="sourceLineNo">178</span>     * @param writer XML output<a name="line.178"></a>
<span class="sourceLineNo">179</span>     * @param segment HL7 segment to append<a name="line.179"></a>
<span class="sourceLineNo">180</span>     * @param omitEmpty Omit empty tags (other than the last one)<a name="line.180"></a>
<span class="sourceLineNo">181</span>     */<a name="line.181"></a>
<span class="sourceLineNo">182</span>    public static void appendSegment(XMLStreamWriter writer, HL7Segment segment, boolean omitEmpty) throws XMLStreamException {<a name="line.182"></a>
<span class="sourceLineNo">183</span>        final String segName = segment.getName();<a name="line.183"></a>
<span class="sourceLineNo">184</span>        final HL7Field[] fields = segment.getFields();<a name="line.184"></a>
<span class="sourceLineNo">185</span>        writer.writeStartElement(segName);<a name="line.185"></a>
<span class="sourceLineNo">186</span>        writer.setDefaultNamespace(HL7_NAMESPACE_URI);<a name="line.186"></a>
<span class="sourceLineNo">187</span>        for (int i = 1; i &lt; fields.length; i++) {<a name="line.187"></a>
<span class="sourceLineNo">188</span>            final HL7Field field = fields[i];<a name="line.188"></a>
<span class="sourceLineNo">189</span>            if (omitEmpty &amp;&amp; i &lt; fields.length - 1 &amp;&amp; field.isEmpty())<a name="line.189"></a>
<span class="sourceLineNo">190</span>                continue;<a name="line.190"></a>
<span class="sourceLineNo">191</span>            final String fieldTag = segName + "." + i;<a name="line.191"></a>
<span class="sourceLineNo">192</span>            for (String[][] repeat : field.getValue()) {<a name="line.192"></a>
<span class="sourceLineNo">193</span>                writer.writeStartElement(fieldTag);<a name="line.193"></a>
<span class="sourceLineNo">194</span>                if (repeat.length == 1 &amp;&amp; repeat[0].length == 1) {<a name="line.194"></a>
<span class="sourceLineNo">195</span>                    if (repeat[0][0].length() &gt; 0)<a name="line.195"></a>
<span class="sourceLineNo">196</span>                        writer.writeCharacters(repeat[0][0]);<a name="line.196"></a>
<span class="sourceLineNo">197</span>                    writer.writeEndElement();<a name="line.197"></a>
<span class="sourceLineNo">198</span>                    continue;<a name="line.198"></a>
<span class="sourceLineNo">199</span>                }<a name="line.199"></a>
<span class="sourceLineNo">200</span>                for (int j = 0; j &lt; repeat.length; j++) {<a name="line.200"></a>
<span class="sourceLineNo">201</span>                    final String[] comp = repeat[j];<a name="line.201"></a>
<span class="sourceLineNo">202</span>                    if (omitEmpty<a name="line.202"></a>
<span class="sourceLineNo">203</span>                      &amp;&amp; j &lt; repeat.length - 1<a name="line.203"></a>
<span class="sourceLineNo">204</span>                      &amp;&amp; comp.length == 1 &amp;&amp; comp[0].length() == 0)<a name="line.204"></a>
<span class="sourceLineNo">205</span>                        continue;<a name="line.205"></a>
<span class="sourceLineNo">206</span>                    final String compTag = fieldTag + "." + (j + 1);<a name="line.206"></a>
<span class="sourceLineNo">207</span>                    writer.writeStartElement(compTag);<a name="line.207"></a>
<span class="sourceLineNo">208</span>                    if (comp.length == 1) {<a name="line.208"></a>
<span class="sourceLineNo">209</span>                        if (comp[0].length() &gt; 0)<a name="line.209"></a>
<span class="sourceLineNo">210</span>                            writer.writeCharacters(comp[0]);<a name="line.210"></a>
<span class="sourceLineNo">211</span>                        writer.writeEndElement();<a name="line.211"></a>
<span class="sourceLineNo">212</span>                        continue;<a name="line.212"></a>
<span class="sourceLineNo">213</span>                    }<a name="line.213"></a>
<span class="sourceLineNo">214</span>                    for (int k = 0; k &lt; comp.length; k++) {<a name="line.214"></a>
<span class="sourceLineNo">215</span>                        final String subcomp = comp[k];<a name="line.215"></a>
<span class="sourceLineNo">216</span>                        if (omitEmpty<a name="line.216"></a>
<span class="sourceLineNo">217</span>                          &amp;&amp; k &lt; comp.length - 1 &amp;&amp; subcomp.length() == 0)<a name="line.217"></a>
<span class="sourceLineNo">218</span>                            continue;<a name="line.218"></a>
<span class="sourceLineNo">219</span>                        final String subcompTag = compTag + "." + (k + 1);<a name="line.219"></a>
<span class="sourceLineNo">220</span>                        writer.writeStartElement(subcompTag);<a name="line.220"></a>
<span class="sourceLineNo">221</span>                        if (subcomp.length() &gt; 0)<a name="line.221"></a>
<span class="sourceLineNo">222</span>                            writer.writeCharacters(subcomp);<a name="line.222"></a>
<span class="sourceLineNo">223</span>                        writer.writeEndElement();<a name="line.223"></a>
<span class="sourceLineNo">224</span>                    }<a name="line.224"></a>
<span class="sourceLineNo">225</span>                    writer.writeEndElement();<a name="line.225"></a>
<span class="sourceLineNo">226</span>                }<a name="line.226"></a>
<span class="sourceLineNo">227</span>                writer.writeEndElement();<a name="line.227"></a>
<span class="sourceLineNo">228</span>            }<a name="line.228"></a>
<span class="sourceLineNo">229</span>        }<a name="line.229"></a>
<span class="sourceLineNo">230</span>        writer.writeEndElement();<a name="line.230"></a>
<span class="sourceLineNo">231</span>    }<a name="line.231"></a>
<span class="sourceLineNo">232</span><a name="line.232"></a>
<span class="sourceLineNo">233</span>    /**<a name="line.233"></a>
<span class="sourceLineNo">234</span>     * Serialize the XML document and write it to the given output.<a name="line.234"></a>
<span class="sourceLineNo">235</span>     */<a name="line.235"></a>
<span class="sourceLineNo">236</span>    public static void stream(Document doc, OutputStream out) throws IOException {<a name="line.236"></a>
<span class="sourceLineNo">237</span><a name="line.237"></a>
<span class="sourceLineNo">238</span>        // Create and configure Transformer<a name="line.238"></a>
<span class="sourceLineNo">239</span>        TransformerFactory transformFactory = TransformerFactory.newInstance();<a name="line.239"></a>
<span class="sourceLineNo">240</span>        try {<a name="line.240"></a>
<span class="sourceLineNo">241</span>            transformFactory.setAttribute("indent-number", 2);<a name="line.241"></a>
<span class="sourceLineNo">242</span>        } catch (IllegalArgumentException e) {<a name="line.242"></a>
<span class="sourceLineNo">243</span>            // ignore<a name="line.243"></a>
<span class="sourceLineNo">244</span>        }<a name="line.244"></a>
<span class="sourceLineNo">245</span>        Transformer transformer;<a name="line.245"></a>
<span class="sourceLineNo">246</span>        try {<a name="line.246"></a>
<span class="sourceLineNo">247</span>            transformer = transformFactory.newTransformer();<a name="line.247"></a>
<span class="sourceLineNo">248</span>        } catch (TransformerConfigurationException e) {<a name="line.248"></a>
<span class="sourceLineNo">249</span>            throw new RuntimeException(e);<a name="line.249"></a>
<span class="sourceLineNo">250</span>        }<a name="line.250"></a>
<span class="sourceLineNo">251</span>        transformer.setOutputProperty(OutputKeys.METHOD, "xml");<a name="line.251"></a>
<span class="sourceLineNo">252</span>        transformer.setOutputProperty(OutputKeys.INDENT, "yes");<a name="line.252"></a>
<span class="sourceLineNo">253</span><a name="line.253"></a>
<span class="sourceLineNo">254</span>        // Transform DOM into serialized output stream.<a name="line.254"></a>
<span class="sourceLineNo">255</span>        // Wrap output stream in a writer to work around this bug:<a name="line.255"></a>
<span class="sourceLineNo">256</span>        // http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6337981<a name="line.256"></a>
<span class="sourceLineNo">257</span>        OutputStreamWriter writer = new OutputStreamWriter(out, "UTF-8");<a name="line.257"></a>
<span class="sourceLineNo">258</span>        try {<a name="line.258"></a>
<span class="sourceLineNo">259</span>            transformer.transform(new DOMSource(doc), new StreamResult(writer));<a name="line.259"></a>
<span class="sourceLineNo">260</span>        } catch (TransformerException e) {<a name="line.260"></a>
<span class="sourceLineNo">261</span>            if (e.getCause() instanceof IOException)<a name="line.261"></a>
<span class="sourceLineNo">262</span>                throw (IOException)e.getCause();<a name="line.262"></a>
<span class="sourceLineNo">263</span>            throw new RuntimeException(e);<a name="line.263"></a>
<span class="sourceLineNo">264</span>        }<a name="line.264"></a>
<span class="sourceLineNo">265</span>        writer.flush();<a name="line.265"></a>
<span class="sourceLineNo">266</span>    }<a name="line.266"></a>
<span class="sourceLineNo">267</span><a name="line.267"></a>
<span class="sourceLineNo">268</span>    /**<a name="line.268"></a>
<span class="sourceLineNo">269</span>     * Test routine. Reads HL7 messages in "file format" and outputs them in an XML document.<a name="line.269"></a>
<span class="sourceLineNo">270</span>     */<a name="line.270"></a>
<span class="sourceLineNo">271</span>    @SuppressWarnings("fallthrough")<a name="line.271"></a>
<span class="sourceLineNo">272</span>    public static void main(String[] args) throws Exception {<a name="line.272"></a>
<span class="sourceLineNo">273</span>        InputStream in = System.in;<a name="line.273"></a>
<span class="sourceLineNo">274</span>        boolean verbose = false;<a name="line.274"></a>
<span class="sourceLineNo">275</span>        if (args.length &gt; 0 &amp;&amp; args[0].equals("-v")) {<a name="line.275"></a>
<span class="sourceLineNo">276</span>            verbose = true;<a name="line.276"></a>
<span class="sourceLineNo">277</span>            String[] args2 = new String[args.length - 1];<a name="line.277"></a>
<span class="sourceLineNo">278</span>            System.arraycopy(args, 1, args2, 0, args2.length);<a name="line.278"></a>
<span class="sourceLineNo">279</span>            args = args2;<a name="line.279"></a>
<span class="sourceLineNo">280</span>        }<a name="line.280"></a>
<span class="sourceLineNo">281</span>        switch (args.length) {<a name="line.281"></a>
<span class="sourceLineNo">282</span>        case 1:<a name="line.282"></a>
<span class="sourceLineNo">283</span>            in = new FileInputStream(args[0]);<a name="line.283"></a>
<span class="sourceLineNo">284</span>            // FALLTHROUGH<a name="line.284"></a>
<span class="sourceLineNo">285</span>        case 0:<a name="line.285"></a>
<span class="sourceLineNo">286</span>            break;<a name="line.286"></a>
<span class="sourceLineNo">287</span>        default:<a name="line.287"></a>
<span class="sourceLineNo">288</span>            System.err.println("Usage: XMLConverter [-v] [filename]");<a name="line.288"></a>
<span class="sourceLineNo">289</span>            System.exit(1);<a name="line.289"></a>
<span class="sourceLineNo">290</span>            break;<a name="line.290"></a>
<span class="sourceLineNo">291</span>        }<a name="line.291"></a>
<span class="sourceLineNo">292</span>        HL7FileReader reader = new HL7FileReader(in);<a name="line.292"></a>
<span class="sourceLineNo">293</span>        Document doc = createDocument();<a name="line.293"></a>
<span class="sourceLineNo">294</span>        while (true) {<a name="line.294"></a>
<span class="sourceLineNo">295</span>            try {<a name="line.295"></a>
<span class="sourceLineNo">296</span>                XMLConverter.appendMessage(doc.getDocumentElement(), reader.readMessage(), !verbose);<a name="line.296"></a>
<span class="sourceLineNo">297</span>            } catch (EOFException e) {<a name="line.297"></a>
<span class="sourceLineNo">298</span>                break;<a name="line.298"></a>
<span class="sourceLineNo">299</span>            }<a name="line.299"></a>
<span class="sourceLineNo">300</span>        }<a name="line.300"></a>
<span class="sourceLineNo">301</span>        reader.close();<a name="line.301"></a>
<span class="sourceLineNo">302</span>        XMLConverter.stream(doc, System.out);<a name="line.302"></a>
<span class="sourceLineNo">303</span>    }<a name="line.303"></a>
<span class="sourceLineNo">304</span>}<a name="line.304"></a>
<span class="sourceLineNo">305</span><a name="line.305"></a>




























































</pre>
</div>
</body>
</html>
